#include t_class*single_class; static void single_float(t_object*x, t_float f1) { pd_error(x, "%s got %f", __FUNCTION__, f1); } static void*single_new(void) { return pd_new(single_class); } void single_setup(void) { post("%s", __FUNCTION__); single_class = class_new(gensym("single"), single_new, 0, sizeof(t_object), 0, A_NULL); class_addfloat(single_class, single_float); }